WO2012072436A1 - Pickup for an agricultural machine - Google Patents

Pickup for an agricultural machine Download PDF

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Publication number
WO2012072436A1
WO2012072436A1 PCT/EP2011/070544 EP2011070544W WO2012072436A1 WO 2012072436 A1 WO2012072436 A1 WO 2012072436A1 EP 2011070544 W EP2011070544 W EP 2011070544W WO 2012072436 A1 WO2012072436 A1 WO 2012072436A1
Authority
WO
WIPO (PCT)
Prior art keywords
pickup
wheel
frame
ground
carrier
Prior art date
Application number
PCT/EP2011/070544
Other languages
English (en)
French (fr)
Inventor
Lukasz Ziembicki
Original Assignee
Cnh Belgium N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cnh Belgium N.V. filed Critical Cnh Belgium N.V.
Priority to EP11787670.6A priority Critical patent/EP2645843B1/en
Priority to BR212013010086U priority patent/BR212013010086Y1/pt
Priority to US13/990,265 priority patent/US9095094B2/en
Priority to CN201180056532.1A priority patent/CN103237440B/zh
Priority to BR112013010086A priority patent/BR112013010086A2/pt
Publication of WO2012072436A1 publication Critical patent/WO2012072436A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D89/00—Pick-ups for loaders, chaff-cutters, balers, field-threshers, or the like, i.e. attachments for picking-up hay or the like field crops
    • A01D89/004—Mountings, e.g. height adjustment, wheels, lifting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B60B33/0023—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor in the form of specific adaptations to the form of the object
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0039—Single wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
    • B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical

Definitions

  • the present invention relates to a pickup for an agricultural machine.
  • a pickup typically comprises a drum rotatably mounted on a frame and having radially projecting tines to drive the crop material upwards, past a guide (that is termed a windguard) and then into a feed channel through which the crop material is conveyed into the machine for processing.
  • a guide that is termed a windguard
  • a pickup it is known for a pickup to be supported on two ground wheels and these may be adjustable in order to allow the ground clearance to be adjusted.
  • the ground wheels are provided only for support, and are not used for steering, they are commonly designed as caster wheels so that they align themselves automatically with the direction of travel of the machine.
  • a caster wheel is pivotable about a generally vertical axis, generally known as and herein referred to as a caster axis, but the point of contact of the wheel with the ground is offset from the caster axis.
  • drag rotates the wheel such that its point of contact with the ground always lines up behind the caster axis in the direction of travel thereby causing the wheel to point automatically in the correct direction.
  • the present invention provides a pickup for an agricultural machine having a frame carrying a pickup mechanism and supported on the ground by means of two support wheels, wherein each support wheel is mounted for rotation about a generally horizontal axis on a carrier that is connected to the frame of the pickup for rotation about a generally vertical caster axis, the projection of the caster axis intersecting the ground at a point offset from the point of contact of the wheel with the ground, characterised in that each carrier is connected by a respective spring to a point fixed relative to the frame of the pickup, the spring biasing the carrier to cause the support wheel to be oriented in a predetermined direction relative to the frame of the pickup.
  • the springs acting on their carriers bias them into their predetermined direction, also known as the parked position, in which they do not project impermissibly beyond the frame of the pickup.
  • the wheels are preferably aligned to steer the pickup in a straight line.
  • EP 1 362 506 discloses a wheel that is supported by a carrier for rotation about a horizontal axis and the carrier is itself mounted on the pickup to pivot about a second horizontal axis. This arrangement, which acts in the same way as a motorcycle swinging arm suspension, allows height adjustment of the wheel but the wheel has no caster action and does not align automatically with the direction of travel.
  • EP 2 113 396 discloses a pickup support wheel mounted on a carrier secured to a pivot shaft that defines the caster axis of the wheel.
  • the pivot shaft can rise and fall relative to the frame of the pickup and, when it falls to the limit of its travel, a pin projecting from the pivot shaft interacts with a cam surface to cause the wheel to rotate into a desired position.
  • a pin projecting from the pivot shaft interacts with a cam surface to cause the wheel to rotate into a desired position.
  • the springs act to prevent uncontrolled oscillation of the caster wheels because they apply a bias load to the wheels during normal operation and thus also act as dampers to absorb and dissipate the energy that can be the cause of such oscillation.
  • the springs are preferably helical coil springs.
  • the springs are compression coil springs each housed within an annular chamber defined between a cylinder and a piston slidably mounted in the cylinder.
  • the piston and cylinder may additionally serve as a damper and to keep dirt away from the coils of the spring.
  • Compression springs are more reliable than tension springs and such a mounting of a compression spring can enable it to exert a pulling force on the wheel carrier in the same way as a tension spring.
  • Figure 1 is a perspective view of a support wheel assembly for a pickup of an agricultural machine
  • Figure 2 is a side view of the assembly shown in Figure 1, and
  • Figure 3 is a section through a compression coil spring assembly that can be used in place of the tension spring shown in Figures 1 and 2.
  • the wheel assembly 10 shown in Figures 1 and 2 is separable, and shown separately, from the frame of the pickup to which it is attached during normal use.
  • the wheel assembly comprises an axle 12 that is rotatably received within a bearing assembly that forms part of the frame of the pickup.
  • the support wheel 14 is mounted on an arm 16 connected to the axle 12.
  • the arm 16 can be pivoted about the axle 12 to alter the ride height of the pickup and can be locked in any of a plurality of positions by inserting a pin 18 into aligned holes in the frame and a pillar 20 that is pivotably connected to the arm 16.
  • the wheel 14 is pivotably mounted on a carrier 22 that can rotate relative to the arm 16 about a generally vertical caster axis 26 defined by a pivot shaft 24.
  • a carrier 22 that can rotate relative to the arm 16 about a generally vertical caster axis 26 defined by a pivot shaft 24.
  • the point 28 of contact between the wheel 14 and the ground is offset from the point 30 of the projection of the caster axis 26 onto the ground.
  • the wheel 14 always lines up behind the caster axis 26 in the direction of travel, which is designated by the arrows F in Figures 1 and 2.
  • the support wheel assembly is conventional and in the prior art two problems have been encountered with such a wheel design.
  • a spring 32 is provided that is anchored to the carrier 22 when in use and to a bracket 34 on the arm 16 to bias the wheel into a predetermined position, preferably the position in which it steers the pickup to travel in a straight line. This ensures that the wheels do not project sideways from the frame of the pickup when raised from the ground during transportation and it also prevent any wobble of the wheel during normal operation by acting to centre the wheel and as a damper to absorb and dissipate shocks tending to misalign the wheel.
  • a tension spring 32 as shown in Figures 1 and 2
  • a spring assembly 132 as shown in Figure 3.
  • the assembly of Figure 3 comprises a compression spring 134 that is mounted within an annular chamber 136 defined between a piston 138 and a cylinder 140.
  • the piston rod 142 and the cylinder 140 are fitted with connectors 144 and 146 for attachment to the carrier 22 and the arm 16.
  • the embodiment of Figure 3 offers the advantage that a more reliable compression spring is used in place of a tension spring. Furthermore, the piston/cylinder unit in which the spring is housed can assist in damping oscillations on account of the friction between the piston and the cylinder wall. If desired, the piston/cylinder unit may be designed to operate as a gas or hydraulic damper.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Handcart (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Harvesting Machines For Specific Crops (AREA)
  • Agricultural Machines (AREA)
PCT/EP2011/070544 2010-11-29 2011-11-21 Pickup for an agricultural machine WO2012072436A1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11787670.6A EP2645843B1 (en) 2010-11-29 2011-11-21 Pickup for an agricultural machine
BR212013010086U BR212013010086Y1 (pt) 2010-11-29 2011-11-21 meio coletor para uma máquina agrícola
US13/990,265 US9095094B2 (en) 2010-11-29 2011-11-21 Pickup for an agricultural machine
CN201180056532.1A CN103237440B (zh) 2010-11-29 2011-11-21 用于农业机器的拾取器
BR112013010086A BR112013010086A2 (pt) 2010-11-29 2011-11-21 meio coletor para uma máquina agrícola

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2010/0712A BE1019658A3 (nl) 2010-11-29 2010-11-29 Pickup voor een landbouwmachine.
BE2010/0712 2010-11-29

Publications (1)

Publication Number Publication Date
WO2012072436A1 true WO2012072436A1 (en) 2012-06-07

Family

ID=44652111

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2011/070544 WO2012072436A1 (en) 2010-11-29 2011-11-21 Pickup for an agricultural machine

Country Status (6)

Country Link
US (1) US9095094B2 (pt)
EP (1) EP2645843B1 (pt)
CN (1) CN103237440B (pt)
BE (1) BE1019658A3 (pt)
BR (2) BR112013010086A2 (pt)
WO (1) WO2012072436A1 (pt)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130076103A1 (en) * 2010-05-31 2013-03-28 Cnh America Llc Support wheel assembly for a pick-up of an agricultural machine
WO2014053425A1 (en) 2012-10-01 2014-04-10 Cnh Belgium N.V. Improved caster wheel assembly of a pickup for an agricultural machine
WO2014053426A1 (en) 2012-10-01 2014-04-10 Cnh Belgium N.V. A caster wheel assembly of a pickup for an agricultural machine

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2941949B1 (en) 2014-04-18 2017-03-22 CNH Industrial Belgium nv Indexing wrapping system and supporting systems
US10356983B2 (en) 2014-04-18 2019-07-23 Cnh Industrial America Llc Indexing net wrap system
US9603308B2 (en) 2014-06-26 2017-03-28 Cnh Industrial Canada, Ltd. Continuous round baler with variable conveyor
US9918433B2 (en) 2014-06-26 2018-03-20 Cnh Industrial Canada, Ltd. Continuous harvester and mobile wrapping systems and methods of using the same
US9549506B2 (en) 2014-08-27 2017-01-24 Cnh Industrial America Llc Harvester with rear active bottom floor
US9854744B2 (en) 2014-12-11 2018-01-02 Cnh Industrial America Llc Adjusting bale density setting based on bale weight and/or moisture
US10036663B2 (en) 2014-12-24 2018-07-31 Cnh Industrial America Llc Weighing round bales
US9526214B2 (en) 2015-01-30 2016-12-27 Cnh Industrial America Llc Drop floor assembly with front and rear linkage mechanism
US9913433B2 (en) 2015-01-30 2018-03-13 Cnh Industrial America Llc Selectable knife tray arrangement
US9622417B2 (en) 2015-05-01 2017-04-18 Cnh Industrial America Llc Tailgate motion adjustment system
US9713306B2 (en) 2015-06-09 2017-07-25 Cnh Industrial America Llc Electrohydraulic circuit for a drop floor assembly
US10161431B2 (en) 2015-09-04 2018-12-25 Cnh Industrial America Llc Net pole latch mechanism
US9839181B2 (en) 2015-09-10 2017-12-12 Cnh Industrial America Llc Operation and control of bottom floor assembly
US9949438B2 (en) 2016-01-14 2018-04-24 Cnh Industrial America Llc Continuous harvester with crop supply chamber
US9877432B2 (en) 2016-01-14 2018-01-30 Cnh Industrial America Llc Continuous harvester with crop supply chamber
US9894843B2 (en) 2016-01-14 2018-02-20 Cnh Industrial America Llc Continuous harvester with crop supply chamber
US10499554B2 (en) 2016-05-06 2019-12-10 Cnh Industrial America Llc Anti wobbling castor support for a wheel
US11208228B2 (en) 2016-07-14 2021-12-28 Cnh Industrial America Llc Net wrapping system
US10575469B2 (en) 2016-07-14 2020-03-03 Cnh Industrial America Llc Net wrapping system
EP3289855B1 (en) 2016-09-04 2023-07-05 CNH Industrial Belgium nv Spread roll cap system
CN107318385A (zh) * 2017-07-24 2017-11-07 合肥雄川机械销售有限公司 一种用于农业收割机尾部的抓取回收装置及其操作方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1179294A1 (de) * 2000-08-08 2002-02-13 Deere & Company Haltevorrichtung eines Rades einer Gutaufnahmevorrichtung
EP1362506A1 (de) 2002-05-16 2003-11-19 Deere & Company Gutaufnahmevorrichtung und Höhenführungsvorrichtung
EP2113396A1 (de) 2008-04-29 2009-11-04 Maschinenfabrik Kemper GmbH & Co. KG Stützradanordnung für einen Schwadaufnehmer mit selbsttätiger Arretierung in der Transportstellung

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
US2179877A (en) * 1937-09-20 1939-11-14 Harvey N Martin Tail wheel assembly
US2508351A (en) * 1946-07-27 1950-05-23 Cleveland Pneumatic Tool Co Caster centering device
US3962849A (en) * 1974-12-05 1976-06-15 Hesston Corporation Caster wheel arm
US4154451A (en) * 1977-12-23 1979-05-15 Ralph Mckay Limited Control wheel
US4254532A (en) * 1978-11-03 1981-03-10 Modern Suspension Systems, Inc. Caster apparatus
US4410194A (en) * 1981-06-25 1983-10-18 Deere & Company Caster wheel brake
US5562167A (en) * 1995-06-05 1996-10-08 Honey Bee Manufacturing Ltd. Implement caster wheel
CN101502211B (zh) * 2009-03-26 2013-01-02 张丽苹 棉秆捡拾切碎收获机

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1179294A1 (de) * 2000-08-08 2002-02-13 Deere & Company Haltevorrichtung eines Rades einer Gutaufnahmevorrichtung
EP1362506A1 (de) 2002-05-16 2003-11-19 Deere & Company Gutaufnahmevorrichtung und Höhenführungsvorrichtung
EP2113396A1 (de) 2008-04-29 2009-11-04 Maschinenfabrik Kemper GmbH & Co. KG Stützradanordnung für einen Schwadaufnehmer mit selbsttätiger Arretierung in der Transportstellung

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130076103A1 (en) * 2010-05-31 2013-03-28 Cnh America Llc Support wheel assembly for a pick-up of an agricultural machine
US9723788B2 (en) * 2010-05-31 2017-08-08 Cnh Industrial America Llc Support wheel assembly for a pick-up of an agricultural machine
WO2014053425A1 (en) 2012-10-01 2014-04-10 Cnh Belgium N.V. Improved caster wheel assembly of a pickup for an agricultural machine
WO2014053426A1 (en) 2012-10-01 2014-04-10 Cnh Belgium N.V. A caster wheel assembly of a pickup for an agricultural machine
BE1021114B1 (nl) * 2012-10-01 2015-12-18 Cnh Industrial Belgium Nv Verbeterd zwenkwielgeheel van opraper voor een landbouwmachine
BE1021113B1 (nl) * 2012-10-01 2015-12-18 Cnh Industrial Belgium Nv Zwenkwielgeheel van een opraper voor een landbouwmachine

Also Published As

Publication number Publication date
BR112013010086A2 (pt) 2016-09-13
EP2645843B1 (en) 2015-01-07
CN103237440B (zh) 2017-08-01
US20130305683A1 (en) 2013-11-21
BE1019658A3 (nl) 2012-09-04
US9095094B2 (en) 2015-08-04
BR212013010086Y1 (pt) 2019-01-02
CN103237440A (zh) 2013-08-07
EP2645843A1 (en) 2013-10-09

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